National Weather Service Text Product
AFOS product CLIIAD
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLIIAD
Product Timestamp: 2023-08-09 05:28 UTC
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577
CDUS41 KLWX 090528
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
128 AM EDT WED AUG 09 2023
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 8 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 5:19 PM 101 2007 87 -1 94
MINIMUM 69 4:48 AM 49 1989 66 3 75
AVERAGE 78 77 1 85
PRECIPITATION (IN)
YESTERDAY 0.00 0.74 2005 0.12 -0.12 T
MONTH TO DATE 1.19 0.96 0.23 0.78
SINCE JUN 1 8.58 9.41 -0.83 8.76
SINCE JAN 1 18.56 26.65 -8.09 25.98
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 5 13 -8 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 13 12 1 20
MONTH TO DATE 87 96 -9 133
SINCE JUN 1 742 712 30 786
SINCE JAN 1 816 818 -2 915
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 10.8
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 AM
LOWEST 40 5:00 PM
AVERAGE 69
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 97 1980
2001
MINIMUM TEMPERATURE (F) 66 47 1989
SUNRISE AND SUNSET
AUGUST 9 2023........SUNRISE 6:18 AM EDT SUNSET 8:12 PM EDT
AUGUST 10 2023........SUNRISE 6:19 AM EDT SUNSET 8:11 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$